使用java反射技术完成对象所有属性值的输出
package wml.demo;import java.lang.reflect.*;class Person{//预定义的一个演示类private String name;private int age;private String sex;//对应的getter和setter方法public String getName() {return name;}public void setName(String name) {this.name = name;}public int getAge() {return age;}public void setAge(int age) {this.age = age;}public String getSex() {return sex;}public void setSex(String sex) {this.sex = sex;}}public class OutAllFieldsDemo {public static void main(String args[])throws Exception{//预先生成一个p1对象Person p1 = new Person();p1.setName("Jefferson");p1.setAge(23);p1.setSex("male");//再生成一个p2对象Person p2 = new Person();p2.setName("wangminli");p2.setAge(24);p2.setSex("famale");//使用反射技术完成对象属性的输出Class<?> c = null;c = Class.forName("wml.demo.Person");Field [] fields = c.getDeclaredFields();for(Field f:fields){f.setAccessible(true);}//输出p1的所有属性System.out.println("=============About p1===============");for(Field f:fields){String field = f.toString().substring(f.toString().lastIndexOf(".")+1);//取出属性名称System.out.println("p1."+field+" --> "+f.get(p1));}//同上输出p2所有属性System.out.println("=============About p2===============");for(Field f:fields){String field = f.toString().substring(f.toString().lastIndexOf(".")+1);//取出属性名称System.out.println("p2."+field +" --> "+f.get(p2));}}}运行结果: